Information processing device and information processing system

An information processing system, comprising:

• a tape drive including
• a buffer memory;
• and
• an information processing device including
• a processor configured to
• transmit to the tape drive a write request in one of a first mode and a second mode for accompanying data, the accompanying data accompanying the write request, the write request in the first mode requesting to store the accompanying data in the buffer memory without writing the accompanying data to a magnetic tape, the write request in the second mode requesting to write data stored in the buffer memory and the accompanying data to the magnetic tape,
• detect a remaining amount of the buffer memory,
• transmit a write request in the first mode for one of multiple pieces of data if the remaining amount is larger than a predetermined threshold value, and
• transmit a write request in the second mode for the one of the multiple pieces of data if the remaining amount is equal to or smaller than the predetermined threshold value.

A computer-readable recording medium having stored therein a program that causes a computer to execute a process, the process comprising:

• transmitting to a tape drive a write request in one of a first mode and a second mode for accompanying data, the accompanying data accompanying the write request, the write request in the first mode requesting to store the accompanying data in a buffer memory included in the tape drive without writing the accompanying data to a magnetic tape, the write request in the second mode requesting to write data stored in the buffer memory and the accompanying data to the magnetic tape;
• detecting a remaining amount of the buffer memory;
• transmitting a write request in the first mode for one of multiple pieces of data if the remaining amount is larger than a predetermined threshold value;
• and
• transmitting a write request in the second mode for the one of the multiple pieces of data if the remaining amount is equal to or smaller than the predetermined threshold value.